Abstract:
Eight high-spin states in 36Ar below 10MeV excitation energy, among them a prospective J π = 8- state at 9408keV and the J? 8 levels of the recently discovered superdeformed rotational band, have been observed by n-γ coincidence measurements with the 33S(α, nγ) reaction at E α = 14.4 and 13.4MeV. High-spin assignments of, respectively, J π = 6+ and 5- were obtained for the E p = 1209 and 1462keV (E x = 9682 and 9927keV) resonances of the 35Cl (p,γ) reaction by a measurement of γ-ray angular distributions. The spectrum of the high-spin and of the E x? 7.4MeV levels is decomposed according to the underlying shell model configurations with n = 0, 1, 2, 4 particles excited from the N = 2 into the N = 3 major shell. The role of four-particle excitations, all connected with large prolate distortions, is elucidated for the entire A = 36-40 mass region.
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Received: 21 December 2001 / Accepted: 25 March 2002
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Röpke, H., Brenneisen, J. & Lickert, M. High-spin states in 36Ar and their underlying shell model configurations. Eur Phys J A 14, 159–167 (2002). https://doi.org/10.1140/epja/i2001-10201-5
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DOI: https://doi.org/10.1140/epja/i2001-10201-5